Anode is a point on a standing wave that has no displacement from the rest position. at the nodes,

Nodes are points along the medium that appear to be standing still. They are points on a standing wave that has no displacement from the rest position.
Antinodes are the opposite of nodes. Those are points that undergo the maximum displacement.
At the nodes the destructive interference occurs . For example a crest of one wave meets a trough of a second wave , or a half-crest of one wave meets a half-trough of a second wave...